Feb. 7, 2013 A single embryonic stem cell can develop into more than 200 specialized cell types that make up our body. This maturation process is called differentiation and is tightly regulated through strict control of gene activity. If the regulation is lost, specialized cells cannot develop correctly during development. In adulthood, the specialized cells may forget their identity and develop into cancer cells. Research from BRIC, University of Copenhagen, has identified a crucial role of the molecule Fbxl10 in differentiation of embryonic stem cells and suggests the molecule as a new potential target for cancer therapy. "Our new results show that this molecule is required for the function of one of the most important molecular switches that constantly regulates the activity of our genes. If Fbxl10 is not present in embryonic stem cells, the cells cannot differentiate properly and this can lead to developmental defects," says Professor Kristian Helin, who heads the research group behind the new findings. Fbxl10 recruits and activates genetic switches The Polycomb protein complexes PRC1 and PRC2 are some of the most important genetics switches, which control the fate of individual cells through negative regulation of gene activity. The mechanism by which PRCs are recruited … Continue reading
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